Definition of involuntarily

The word "involuntarily" has its roots in Latin. It comes from the phrase "involuntarius," which is a combination of "in" (not) and "voluntarius" (voluntary). In Latin, "involuntarius" was used to describe something that happened against one's will or without one's intention. This phrase was later borrowed into Middle English as "involuntarie," and eventually evolved into the modern English word "involuntarily." The word "involuntarily" has been used in English since at least the 15th century, and its meaning has remained largely unchanged. Today, it is used to describe actions or events that are not intentional or deliberate, but rather occur due to external circumstances or against one's own desires.